Trap.



Patented Nov. 6, I900.

No. 66l,l22.

T. J. FITZPATBIBK.

' TRAP.

(Application filed Mar. 10, 1900.;

VENTO 7% ATTORNEY.

' (No Model.)

UNTTET) STATES PATENT FFIcE.

TIMOTHY J. FITZPATRICK, OF BOSTON, MASSACHUSETTS.

SPECIFICATION forming part of Letters Patent No. 661,122, dated November 6, 1900.

Application filed March 10,1900. serial No. 8,126. (No model.)

T at whom it nuty concern:

dent of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Traps, of which the following is a specification.

In house-plumbing the bath-tub trap is usually placed between the floor of the bath-room and the ceiling of the room below. t The form of trap used at this point has usually been either the running S-trap or a pot-trap. Theto have the trap screw or clean-out either at the side or on top of the discharge side of the trap. The latter location is particularly convenient in the pot-trap; but in many cities the plumbing regulations require that the trapscrew be water-sealed, and this has me cessitated the location thereof on the side of the trap below the water-line therein. When this is done, it is necessary to inclose the trap in a metal-lined box, so that if one has occasion to remove the trap-screw the water in the trap which is above the opening may flow.

plish this object by providing a running 3- trap with a clean-out opening at a point between the legs of the trap on the upper side of the bend and below the water-level and by inclosing said opening in such a manner that it is impossible for any water to escape I to the ceiling below when the trap-screw is Be it known that I, TIMOTHY J. FITZPAT- RICK, a citizen of the United States, and a resi- 5 removed.

For a more complete disclosure of my invention reference is made to the accompanying drawings, in which Figure l is a plan view showing the fioorplate removed. Fig. 2 is a cross-section on the line X X of Fig. 4. Fig. 3 is a bottom plan view. Fig. 4 is a cross-section on the line Y Y, Figs. 1, 2, and 3. Figs. 5 and 6 are detail views of the parts of the trap-screw.

Fig. '7 is a detail view of the wrench for removing the trap-screw.

The main body 1 of the trap has abaseplate 1 and is provided with the usual inlet 2, outlet 3, and vent-pipe 4. An opening 5 is provided on the upper side of the trap midway between the inlet and discharge legs thereof and at a point'considerably below the waterline therein. The upper side of said opening is provided with a valve-seat 6, and a plate 7 is fitted to said seat. A screw-thread is provided above said seat 6, and anut 8 is adapted to engage the same to clamp plate 7 to its seat,

walls 9 and 10 flare outwardly and extend upwardly and terminate a short distance above the level of the upper sides of the inlet and outlet pipes, and a continuation of said walls extends over the tops of said pipes, so that their upper edges are continuous. The portion of said walls next the upper edge is vertical and circular and is provided with an internal screw-thread. A pipe 11, having a correspondingly-threaded lower end, is screwed .into the circular upper end of said walls 9 made of brass cast in one piece, as shown. A

wrench 14: is provided for unscrewing the nut 8.

A trap which is constructed as above de scribed possesses numerous advantages over the various forms of traps which have previously been used.

The form of trap shown is a most desirable one for the purpose described, as it keeps itself clean without attention. If a house is to be closed in winter and it is desired to remove the water from the trap to prevent freezing, it is simply necessary to remove the floorplate, unscrew the nut 8, and remove the plate 7, after which the water may be readily removed from the trap with a sponge. If there is any obstruction in the trap, it may be readily removed through the opening 5, and access to the interior of the trap may be had in nch more readily through said opening than if it were at the side, as has been previously the custom. Then the plug which closes the opening 5 is removed, there is no chance for the water to escape to the ceiling below, as all the water which flows up through the opening will be retained by the walls 9 and 10. If a stoppage should occur beyond the trap and the water should be backed up at the inlet end, there would still be no danger of wetting the ceiling below, as the water would first have to fill the pipe 11 before it could overflow at all, and when it did overflow it would be onto the floor of the bath-room. Ordinarily, however, the combined capacity of the pipe 11 and of the chamber inclosed by the walls 9 and 10 and the legs of the trap will be at least equal to the capacity of the dischargepipe of the bath-tub from the valve of the tub to the trap.

By my construction I secure all the advantages of convenience of access to the trap which is possessed by the pot-trap with a top clean-out opening, and in addition I provide a trap clean-out which is absolutely watersealed, and yet if there should be any leakage through the clean-out there would be no chance for the escape of sewer-gas or for the water which might leak through to drip down and do any damage.

Having described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is as follows:

1. A trap having a clean-out opening located between its inlet and discharge legs, below the water-line in the trap and on the upper side thereof, means for closing said opening, and impert'orate walls which are cast integral with the trap and extend between the legs thereof on each side of said opening, said walls and the legs of the trap forming a water-tight pocket in which the clean-out opening is located, and which is was wholly disconnected from the passage-way through the trap, except througl'i said cleanout opening.

2. A trap of the character described, having an opening between the inlet and discharge legs of the trap, below the water-line and on the upper side thereof, means for closing said opening, upwardly extending imperforate walls which are integrally connected with the legs of said trap at their sides and bottoms and surround said opening, form ing a chamber in which said opening is located, and which is wholly disconnected from the passage way through the trap except through said clean-out opening, and a pipe which is connected to said walls at their upper edges.

3. An S-trap of the character described having an opening in the upper side midway between the inlet and discharge legs thereof, a screw-plug for closing said opening, imperforate walls which are cast integrally with the body of the trap and extend from the side of one leg to the same side of the opposite leg on each side of the trap, said walls extending over and meeting on the upper sides of said legs and forming a continuous,'circular wall, screw-threads formed on said circular portion, and an imperforate pipe having a screwthreaded end which engages the threads of said wall and extends upwardly therefrom, forming a chamber which is wholly disconnected from the passage through the trap, except through said clean-out opening.

4. An S-trap of the character described having an opening at the upper side, and be tween the inlet and discharge legs thereof, a screw-plug for closing said opening, imperforate walls which are integrally connected with the legs of said trap at their sides and bottoms, said walls surrounding said opening and terminating at their upper edges in a circular wall which extends over the upper sides of the legs of the trap, a pipe having a screwthreaded connection with said circular wall and which extends upwardly to the floor of the room above said trap, said walls, pipe and trap combining to form a water-tight chamber which is wholly disconnected from the passage-Way through the trap, and a cover for closing the top of said pipe.

In testimony whereof I have affixed my sig nature in presence of two witnesses.

TIMOTHY J. FIIZPATRLOK. Vitnesses:

LoUIs H. HARRIMAN, EDITH L. COPELAND. 

